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Intangible Assets (Tables) | 12 Months Ended
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Dec. 30, 2017
Intangible Assets Tables |
Intangible assets |
|  | 2017 |  | 2016 |  | Weighted Average Total Amortization Period
Healthspan Research LLC Acquisition (See Note 9) |  | $ | 1,346,000 |  |  | $ | — |  |  |  | 10 years |
License agreements and other |  |  | 1,494,000 |  |  |  | 1,469,000 |  |  |  | 9 years |
Less accumulated depreciation |  |  | (1,189,000 | ) |  |  | (983,000 | ) |  |  |  |
|  | $ | 1,651,000 |  |  | $ | 486,000 |  |  |  |  |
Estimated aggregate amortization expense |
Years ending December: |  |  |
2018 |  | $ | 233,000 |
2019 |  |  | 233,000 |
2020 |  |  | 228,000 |
2021 |  |  | 209,000 |
2022 |  |  | 171,000 |
Thereafter |  |  | 577,000 |
|  | $ | 1,651,000 |

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